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Finding the Fourth Proportional to 104,611.60, 156,917.40 and 38,053.90

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Solution

The fourth proportional to 104,611.60, 156,917.40 and 38,053.90 is: 57,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,611.60 : 156,917.40 = 38,053.90 : x
  2. Step 2: Convert to fraction form
    104,611.60/156,917.40 = 38,053.90/x
  3. Step 3: Cross multiply
    104,611.60x = 156,917.40 × 38,053.90
  4. Step 4: Simplify right side
    104,611.60x = 5,971,319,047.86
  5. Step 5: Solve for x
    x = 5,971,319,047.86/104,611.60
  6. Step 6: Final answer
    x = 57,080.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.